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Combining uretdione and disulfide reversibly degradable polyurethanes : route to alternating block copolymers
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Summers, Christopher J., Day, Roger, Makal, Umit and Haddleton, David M. (2018) Combining uretdione and disulfide reversibly degradable polyurethanes : route to alternating block copolymers. Polymer Chemistry, 9 (19). pp. 2611-2616. doi:10.1039/c7py01978e
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Official URL: https://doi.org/10.1039/c7py01978e
Abstract
Uretdione (temperature and catalyst controlled) and disulphide (REDOX controlled) functionalised polyurethanes have been described and the reversibility of these bonds tested. The polymers have been synthesised with reversible covalent groups present throughout their backbone, developing routes to reversibly degradable polyurethanes. These materials degrade and reheal in response to different external stimuli, which supplies a proof of concept for controlling the molecular weight, and therefore, the physical properties of a polyurethane. Further, a unique route to an alternating block copolymer is also discussed that utilises a mixture of disulphide and uretdione functionalised polymers as the reagents to form a thiourethane. The dramatically reduced safety hazards of dealing with the functionalised polymers, in comparison to the free isocyanate and thiols, could be of great interest to industrial application for current drives towards safer routes to polyurethanes.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science > Chemistry | ||||||||
| SWORD Depositor: | Library Publications Router | ||||||||
| Library of Congress Subject Headings (LCSH): | Block copolymers, Polyurethanes | ||||||||
| Journal or Publication Title: | Polymer Chemistry | ||||||||
| Publisher: | Royal Society of Chemistry (RSC) | ||||||||
| ISSN: | 1759-9962 | ||||||||
| Official Date: | 21 May 2018 | ||||||||
| Dates: |
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| Volume: | 9 | ||||||||
| Number: | 19 | ||||||||
| Page Range: | pp. 2611-2616 | ||||||||
| DOI: | 10.1039/c7py01978e | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| RIOXX Funder/Project Grant: |
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